Here is the list of exemptions from the California Firearm Safety Certification Program.

Currently there are 17 exemptions:

        X01 = Special Weapons Permit Holder
        X02 = Operation of Law Representative
        X03 = Handgun being returned to the owner
        X13 = FFL collector with COE (curio and relic firearms only)
        X21 = Military - Active Duty
        X22 = Military - Reserve
        X25 = Military - Honorably Retired
        X31 = Peace Officer - California - Active
        X32 = Peace Officer - Federal - Active
        X33 = Peace Officer - California - Honorably Retired
        X34 = Peace Officer - California - Reserve
        X35 = Peace Officer - Federal - Honorably Retired
        X41 = Carry Concealed Weapon (CCW) Permit Holder
        X81 = P.O.S.T. 832 PC (Firearms) Training
        X91 = Particular and Limited Authority Peace Officers
        X95 = Law Enforcement Service Gun to Family Member
        X98 = Valid Hunting License (long guns only)